i don't keep mine in an atmospheric cabinet think they must have come on a bit over the years, there are people using automated systems but they aren't cheap and tend to be for those doing large scale productions. still have to use heaters to keep temp of water right, but don't use distilled water just normal water. still not a cheap setup but there are several film producers and people are even printing there own, but the costs are high and you have to buy a minimum order of custom film for them to do it.
if your mate wants some stuff doing i might be able to help, but am limited with spraying at the moment as i have to wait for good weather to avoid the high moisture count in the air.